Fuel-feed mechanism for internal-combustion engines.



I L. F.--'BU'RGIE,R. FUEL FEED MECHANISM FOR INTERNAL CIVIBUSTION. ENGINES.

' .APPLICATION FILED IANI 20. I9l3. 1,166,967.

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III" InIIIIm" L. F.';BURGER.

FUEL FEED MECHANISIVI FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED IAN 20.1913.

Patented Jun. 4, ISIIIS.

2 SHEETS -SHEET`2- 55mf y f -These objects are attained by means of the To all whom it may concern.'

sTATEs PATENT oEEicE.

LEOPOLD F. BURGER, OF BELOIT, WSCDNSIN,ASSIGNOR, BY'MESNE .ASSIGNMENT-S, T'O INTERNATIONAL HARVESTER CORPORATION, A CORPORATION OF NEW JERSEY.

',EUELFEED MEGHANISM ron 'INTERNAL-COMBUSTION ENGINES.

Be it known that I, LEOPOLD .F. BURGER, a

l citizen of the- United States, residing at Beloit, inthe county of Rock and State of Wisconsin, have invented certain new and useful Improvements in Fuel-Feed Mechanism for Internal-Combustion Engines, of v*which the following is a full, clear, and

exact. specification.

n invention relates to fuel feed Vmechanism for internal combustion engines, and in particular to such devices as are used in a vdual capacity for either controlling the mixture of liquid hydrocarbon and air or of air and gas, depending upon the vadjustment of the various parts of the mechanism; the object of my invention being 'to provide -ag mechanism simple in construction, comprising few parts, capable of easy and quick manipulation, l'and eiiicient in operation.

rmechanism illustrated bythe accompanying drawings, in which- Figure 1 represents a top-plan view ,ofa

fuel feed-mechanism having my inventionv embodied in the'con'struction thereof; Fig.

2 is a vertical half section of Fig. 1;'Fig. 3

is a view of the lupper part f Fig. 2 looking inthe direction of the arrow A-.B and Fig. `4`is afview of the lower. part of Fig. 2 looking inthe direction of the arrow C-e-D.

The Vsaine reference numerals designate likeparts throughout theseveral views.v

'bolts 3, and 4 represents ay butterfly valve walls/of the base ofthe mixing chamber and whereby -the valve 4 may be "controlled by thev governor mechanism of van engine by means of a connecting rod 7, the governor mechanism being operative toI turn the .valve in one direction and a spring 8 in an opposite direction. Secured to one side of the mixing chamber 1 above the valve4 is a constant level -fuelfeed cup 9 that is dithereof.

eating therewith.

specification of Letters Patent. Patented Jam 4,1916, Application iledJanuary 20, 1913. Serial No. 743,150. A

,to the mixing chamber from either receptacle being controlled by. means of needle valves 10 arrangedradially relative 'to the center line of the mixing chamber, with the feed nozzles 11 within the chamber and op-'IA erative to project the fuel towardthe center 12 represents a cylindrical supplemental mixing chamber arrangedvupn the opposite side of the mixing chamber 1 and vcommuni-- 13 represents a separable member-of the device secured to the upper sides of the walls of the mixing chamber by means of bolts 14, and includes an axial extension 15 16 communicating therewith and in axial alinement with the chamber 12 and communicating therewith by mea-ns of a valve of chamber 1 and an air receiving. chamber 17 seated at the bottom of the chamberandhaving a depending stem 18 that is slidably received by a tubular bearing 19 integral with Athe bottom wall of the chamber, and '20 represents a variable pressure sprin'g l mechanism surrounding the stem and bearing and operative to valve seated. 21 represents a stem extending upward from the valve and slidably mounted-in a sleeve member 22 carried by the chamber yieldin'gly hold the walls. *The mechanism'includes-,a vertically arranged mixing chamber 1 having a flange lmember 2 at the lower endv thereof whereby it maybe secured to an engine by vmeans ofA 23 represents an annular chamber at. the. base of chamber 16 that communicates with a source of gas supply by means of an opening 24, and withchamber 12 by 'means of small ports 25 through the seat for 'the valve`17.

26 represents an opening in the upper wall 4of chamber 16, and l27 -a thimble member secured to the upper'wall by means of bolts 28 and adapted to receive an air conducting pipe.-

29 represents a cylindrical shellvalve slidably mounted 1n mixing chamber 1 and provided-with a stem 30 that extends through the upper wall of chamber 15, whereby the Y shell may lbe raised or lowered.' The inner admission` of airA fromV chambers 16 to 15 surface Vof the'wallof the valvelis curv ed inw-ard"in a manner to reduce the interion diameter thereof at the middle of the shell,

and 31 -represents a slot upon one side thereof. that receives the' feed nozzles 1l.

When liquid fuel. is being used the'valve is in the position shown by full lines in Fig. 2 closing the opening between chamber 12' pand chamber l and permitting air to be drawn directly from chambers 16 and 15 -past the fuel nozzles 11 for vaporizing thefuel drawn'therefrom. When it isdesired that a mixture of gas and air be used,'the

j valve 29 is drawn upward, as `shownby- 15- dotted lines in Fig. '2, a spring-pressed plunger 32 mountedin the wall o f chamber Y -15 being iirstwithdrawn and then per;

mitted tofenter thejslot 31 lin a manner to retain the valve in 'its position. of adjust-L ment, .wherein it closes the opening for the and uncovers the opening between chambers -12 and 1, permitting a1r tobe drawn through the'valve controlled opening between chambers 12 and 1G/'and .gas through the ports.

' during the suction stroke ofthe engine, the buttery valve 4, controlled by the en- .gine governor mechanism, '.throttling the A lsupplybf fuel in a well-known way.

at I claim as'my invention, and desire to secure by Letters Patent, is:

1 A fuel) feed mechanism for internal combustion engineshaving, in combination,

a primary` mixinglchamber, a constant level fuel feed cup having valve controlled ports communicating with said chamber, a supplemental 'mixing chamber at one side of` said primary chamber'- and having communication therewith, anv air chamber, an opening between'. said air chamber and said primary mixing chamber, a port for the -admission of air from said air chamber to said'y supplemental mixing chamber, a gas supply- .Chamber having a series of ports communi` eating with said-'supplemental mixing chamber, a Valve controlling both the admission ofgasand air to said supplemental mixing chamber,and a tubular shell valve slidably mounted in said mixing chamber and adapt-v 'ed to close either theopening for air or the openingifor air'and gas thereto.

2. A fuel feed mechanism fer interner combustion engineshaving, in combination,"

' avertically arranged tubular mixing chaml cation .therewith,fan air chamber arrangedber, a constant level'fuel'feedcup secured 'to one side of said chamber and having valve controlled ports and. nozzles communi-` cating therewith, l av supplemental 'mixing chamber arranged upon the opposite side of said -tubular chamber andv having communiabove `said suplemental chamber, an annular gas recelvingfchamber at the base of said air `Achamberand provided with ports for the adto receive `the fueljfeed nozzles,and means' whereby said Vshell'v'alve may be adjusted in av manner to close said air passageway or thel opening between -said tubular mixing chamber and said supplemental chamber,

3. Inafuel feed mechanismfor internal combustionengines, the combination of'a lprimary mixing chamber, a supplemental mixing chamber adapted to communicater therewith, fand means for controlling com- 4municatlon between sald chambers,sa1d

means having two operative -positions,' one "in which it is suspendedand the other .which lit is positively locked. e

4. In a fuel feed mechanism for internal combustion engines, the combination of a source of air supply, two'mixing chambers, and a valve for controlling the flow of air `from said source to one of said chambers in one pos1t1on, and a fuel mixture from the second chamber to.v theiirst in-another position.. 5. In a fuel feed mechanism for internal "com ustion engines, the combination ofi af `sourceof air supply, a 'plurality of mixing chambers, and means for controlling the flow of air from said source to" one-of said chambers either directly or .indirectl 6. ln a fuel feed mechanismfor internal combustion engines, thecombination of a source of air supply, "a plurality'of mixing chambers, `a fuel feed 4nozzle projecting into one 'of said chambers, 'and a valve for controlling the flow of air from said source to one of said chambers in one .positiom--and a .fuel mixture from the second-chamber-to the rst vin another position, said valve having a notched portion through which said nozzle passes.

,-7. In afuel feedmechanism for. internal.

combustion engines, the combination of -a plurality of mixing chambers adapted to communicate with each other, a' .feed nozzle 'through another of said chambers.l l e associated with one of said chambers, and a I valve-for positively controlling communication between Said. chambers, said nozzle being adapted to limit the movement 'of said valve..

8. In a combustion'gengines, the combination of a source-of air supply, two mixing chambers, a fuel nozzle in one Vof said chambers, and

fuel feed mechanism for internal` a single valve which in one position permits In testimony whereof I ax my signature, a HOW of air from said air source past said in the presence of two' Witnesses. nozzle into one of saidchambers and in another position cutting oif direct communica- LEO? OLD F'. BURGER' tion between said air source and chamber Witnesses:

, and permitting a lHOW of fuel mixture from E. A. JOHNSTON.

the second chamber to the irst` S. E. HOUSTON. 

